Territory



(No Model.)

- 2 sheets-fshee't 1..

'BAGRADYQ HARROW.

Patented Feb. 8,1887l WMM/@oom eva/Lto@ @Hom/w,

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2 Sheets-Sheet 2,

(No Model.)

E. A. GRADY.

HARROW.

Patented Feb. 8

N; WTERS4 Phew-Limognpher. washington. Dy C NITED STATES PATENT rricn.

EDWIN ALONZO GRADY, or wALwORTH, DAKOTA TERRITORY.

HARROW.

SPECIFICATION forming part; of Letters Patent No. 357,278, dated Febrary 8, 18,87.

Application filed October 25, 1886. Serial No. 217,155. (No model.)

lowing is a specification.

My invention relates to an improvement in harrows; and it consists in the peculiar construction and combination of devices that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the drawings, Figure lis atop plan view of a harrow embodying my improvements. Fig. 2 is a longitudinal section taken on the line x m of Fig. 1. Fig. 43 is a transverse section taken on the line y y of Fig. l.

A represents the front section ofthe barrow, which is composed of a curved rear beam, B, a longitudinal beam, C, whichA projects forwardly from the center of the curved beam, a transverse beam, D, which is arranged at right angles tothe beam C, and converging front beams, E, which have their front ends att-ached to opposite sides of the front end of the beam C and their rear ends attached to the ends of the beam B, the ends of the transverse beam Bbeing also attached to the beams E, as shown. Suitable harrow teeth are attached to the beams E and incline rearwardly, so as to enable the front section of the harrow to clear the teeth of trash when the harrow is being moved.' On the center of thebeam D is se-v cured a bolster, F, having a central circular disk, G, from the center of which projects a vertical kingbolt, I, having a clamping-nut on its upper end.

Krepresents the rear sections of the harrow, each of which is composed of the longitudinal beam L on its inner side, the transverse beam M, which has one end attached near the rear end of the beam L and projects outwardly therefrom, a curved front beam, N, which projects from the same side of the beam L as the beam M, and tooth-bars O, which are arranged at an angle of about thirty-tive degrees with relation to the beam L, and are attached at their front ends to the said beam and the curved beam N, and are also attached to the transverse beam N. The said rear sections of the harrow are arranged side by side, with their beams L opposing each other, and the curved bars N arrangedconccntrically with t-he curved beam B ot' the front section. The rear portions ofthe sections K are hinged together by a hinge, P. To the front ends of the rear sections are attached reaches R, which are made of iron or other suitable metal, and projecttorwardly from the said sections. Each of the said'reaches is provided with a brace, S, which is also made of iron or other suitable metal, the function of the said braces being to prevent lateral motion ot' the reaches.

T represents a block, which'is pivoted on the Vking-bolt, and the said block is provided near its extremities with transverse horizontal openings t. The front ends of the .reaches R are reduced to form spindles r, which extend into the openings of the block T, and the front ends of the said spindle, which project beyond the front side ofthe said block, are provided with washers and nuts to prevent the spindles from being accidentally withdrawn from the block.

From the foregoing description it is obvious that l,the sections K are hinged together, and also to the frontsection, A, whereby the said sections Kmay be folded one upon the other, as illustrated in dotted lines in Fig. 3, each section K being adapted to be raised from the ground, and thus enabling the harrow to avoid stumps and other obstructions. A

U represents a pair of diverging brace-arms, which have their front ends bolted to the beams D of the pivoted front sections of the harrow, the rear ends ofthesaid brace-arms being united and pivoted near the upper ends of the kingbolt and bearing upon the upper side of the' block l?. f

The narrow-sections K are provided with harrow-teeth V, which are attached to the beams L and O, and are preferably arranged in a vertical position. I have herein shown the common form of spike narrow-teeth attached to the hinged frame; but it will bereadily understood that the spring barrow-teeth in common use may be employed with my har.

row, if preferred.

The front end of the pivoted harrow-section A is provided with ears WV, that are bolted to the upper sides of the beams E, and in between the said ears are hinged or pivoted the rear bifurcated ends of a, tongue or draft-pole, Y.

IOO

The said tongue is provided with the usual l whifiletree and neel-yole for the attachment of a double team.

Vhen the harrow is in operation in a field and a stump or other obstruction is encountered, it is only necessary to raise one of the hinged sections K in order to clear the obstruction, the other hinged section remaining at work. The hinged sections are operated in the same manner to clear their teeth of trash when they becolnc foul. The pivoted section A, at the front end of the harrow, may be readily turned in any direction, thus adapting the harrow to make a short turn.

By providing the harrow with the tongue, which is hinged thereto, the harrow is drawn forward in a perfectly straight line, and is prevented from moving sidewise andj nmping and jerking about the field, thus keeping it steadily at work and harrowing the ground in asuperior manner. Another advantage derived from employing the tongue is that the horses cannot back upon the harrow and injure themselves by getting their feet entangled between the beams, nor can the harrow be jerked forcibly forward against the legs of the horses in the event that they should plunge or attempt to run away.

Having thus described my invention, I claim-- l. A harrow having the sections K, hinged together, the pivoted section A atthe front end of the hinged sections, and the tongue at tached to the said pivoted section, substantially as described.

having the vertical harrow-teeth, whereby the u front section will clear itself of trash and whereby the rear sections may be raised independently of each other to clear their teeth when they become fouled, substantially as described.

5. The harrow having the front section, A, and the rear sections, K, pivoted to the front section independently of each other, a'nd also.

independent of the front section, so that either of the rear sections may be folded' upon the other without affecting the front section.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

EDWIN ALONZO GRADY.

Vitnesses:

XV. H. Nnsnrr, C. T. HOLMES. 

